modbus power meter DDS238-2 ZN/S single phase Din rail KWH Watt hour energy meter with RS485 MODBUS-RTU

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import minimalmodbus
import time
import serial
import datetime
 
instrument = minimalmodbus.Instrument('com6', 0x01, debug=True)  # port name, slave address (in decimal)
instrument.serial.baudrate = 9600
instrument.serial.stopbits = 1
instrument.serial.parity = serial.PARITY_NONE
instrument.serial.timeout = 1
print(instrument.serial)
 
val = instrument.read_long(0x00, functioncode=3)
#val = instrument.read_register(0xC, 1)
 
 
print(val)